The United Nations Council on Populations, Growth and Movement, estimates that France will be majority moslem by 2026 and Britain will be majority moslem by 2028. This means, of course, that a large number of those will be children and teenagers and absent the power of the vote. Nevertheless, a glance at Question Time reveals how many Moslems are already in powerful political positions. Somebody must be voting for them.
As to mosques; Saudi Arabia will fund the phenomenal growth of them to its last petrodollar.